Shell Problems Shell Menus ShellExView Utility NirSoft Utilities
pspshellx64.dll - Disable/Enable Shell Extensions

This hint I am missing in your helpfiles:

All the changes you are making will only take effect after your reboot your computer!

The details of the shell extension that might cause the problem:

Shell Extension Name: EditWithPSPad
Filename: pspshellx64.dll
Description: Windows Explorer context menu extension for PSPad
Company:  
Product Name: PSPad
File Version: 1.0.1.1
CLSID: {ED90173A-3B4C-4E7E-B9CF-79714425D4B5}

If you think that you have similar problem in your system, you can try to fix the problem by disabling the specified shell extension. In order to do that, simply follow the instructions below:

  1. Download and run the ShellExView utility from this Web page.
  2. Find the right shell extension according the details specified above.
  3. Select this shell extension and press F7 to disable this extension. After disabling the shell extension, check if the problem still occurs. If the problem still occurs, you should enable back the shell extension by pressing F8, and then try to search for another shell extension that might cause your problem.